Convertible window



Jan. 29; 1952 H. A. KAUFMANN $583,851

CONVERTIBLE wmnow Filed April 6, 1950 5 sheets-sheet 1 3nnerntor HARRYA. KAUFMAN/V (Ittorneg Jan. 29, 1952 H. A. KAUFMANN 2,583,851

CONVERTIBLE WINDOW Filed April 6, 1950 3 Sheets-Sheet 2 Snnentor HARRYA. KAUFMAN/v Jan. 29, 1952 H. A. KAUFMANN CONVERTIBLE} WINDO'v 5Sheets-Sheet 3 Filed April 6, 1950 Bnventor HARRY A. KA UFMAN PatentedJan. 29, 1952 CONVERTIBLE WINDOW Harry A. Kaufmann, Detroit, Mich,assignor to Kaufmann Corporation, Detroit,,Mich., a corporation ofMichigan Application April 6, 1950, Serial No. 154,340

6 Claims. 1

This invention relates in general to a self-storing combination stormand screen sash unit and more particularly to improved means for supporting the sash thereof with respect to each other and substantiallywithin a zone peripheral ly defined by the opposing surfaces of theblind stop and the sill of a conventional, double hung window frame.

Although there are many types of conventional window frames for doublehung windows, such as those usually found in industrial or apartmenttype buildings, features of construction common to most such framesinclude a sill and a blind stop which latteris generally comprised of apair of vertical elements and a top, horizontal element. However, thecross-sectional contours of said sill and the blind stop may, and oftendo, vary substantially from one window frame to another. For example,the exterior side of the blind-stop, which faces towards the outside ofthe building, sometimes has an ornate bead which prevents securement ofstorm sash thereto. Often, the exterior surface of the sill is flushwith the exterior surface of the blind stop, thereby eliminating themeans upon which conventional types of storm sashes are normallysupported. If either or both of these conditions exist, it is diflicultat best to mount presently known types of combination storm and screensashes upon the window frame.

The majority of presently known, combination storm and screen sash unitscan be conveniently installed only from the outside of the building,even though the sashes thereof may be operated from the inside afterinstallation. Thus, where the window openings are at a considerableheight from the ground, such as in oiiiee buildings or apartment houses,the installation of said present units becomes dangerous and/ordifficult. Under such circumstances a combination storm and screen sash,unit which is normally installed from within the building would be ofgreat value.

It is further often desirable, particularly in office building, factoryand apartment window construction, that the window unit be of thesocalled self-storing type. be provided by which at least a portion ofthe glass panel may be quickly and easily moved out of the way, leavingonly a screen panel to close the portion of the window opening formerlyclosed by said glass panel, in order that it will not be necessary toremove said glass panel from the window assembly for storage purposes.

It will be evident, of course, that although these remarks have beendirected particularly toward office, industrial and apartment typebuildings, the problems mentioned are by no means limited thereto, butapply also, though perhaps in lesser degree, to individual dwellingunits.

Accordingly, a primary object of this inven- That is, means shouldentirely upon and substantially between the on posed surfaces of thesill and blind stop elements of a double hung window. The upper andlower tion is the provision of a self-storing combination storm andscreen sash unit easily mountable upon any window frame wherein at leasta portion of the sill thereof lies within a zone defined by the opposingsurfaces of the vertical and horizontal elements of the'blind stop.

A further object of this invention is the provision of a combinationunit, as aforesaid, mountable entirely upon and substantially betweenthe opposing surfaces of the sill and blind stop of a double hung windowframe.

A further object of this invention is the provision of means forsupporting the sash of said combination unit with respect to each otherand the blind stop and sill of a double hung window frame, whereby theobjectionable openings often occurring between said blind stop elementsand said sash supporting means are positively eliminated. I

Another object of this invention is the provision of sash supportingmeans, as aforesaid, mountable upon the opposing surfaces of the silland blind stop of a double hung window frame by workmen operating fromwithin the building containing said window frame.

A further object of this invention is the provision of a combinationunit, as aforesaid, having double hung storm sashes disposed between theopposing surfaces of the sill and blind stop of a double hung windowframe whereby a lower storm sash may be stored parallel with an upperstorm sash between said upper storm sash and the upper sash of the mainwindow.

A further object of this invention is the provision of a combinationunit, as aforesaid, comprised of a lower screen sash, an upper glasssash supported upon said lower screen sash, and a lower glass sashdisconnectably supportable in storage position upon said screen sashadjacent to the upperglass sash, all of said sashes being easily andquickly removable from the means sup: porting said sashes between andupon the opposing surfaces of the sill and blind stop of the double hungwindow frame.

Other objects andpurposes of this invention will become apparent topersons familiar with this type of equipment upon referring to theaccompanying drawings and upon reading the following specification.

In meeting those objects and purposes, heretofore mentioned, as well asothers incidental thereto and associated therewith, I have provided sashsupporting means including guide angles for removably supporting anupper glass sash, a lower glass sash and a lower screen sash glasssashesand the screen sash are slidably and of my invention, reference ismade to the accompanying drawings in which:

Figure 1 is a broken, front or exterior, elev a tion viewof thecombination storm and screen. unit to which this invention relates asappearing from the outside of a building in which it may be installed.

Figure 2 is a cross-sectional view taken along the line IIII of Figure1.

Figure 3 is a broken rear, or interior, elevation view of the saidcombination storm and screen unit as appearing from the inside of thesaid building. V

Figure 4 is a cross-sectional view substantially as taken along the line'IVIV of Figure 3 but showing the'lower glass sash in the loweredposition.

Figure 5 is a cross-sectional view taken along the line V---V of Figure3.

Figure 6 is a cross-sectional view the line VI-VI of Figure 3.

Figure 7 is a cross-sectional view taken along the line VII--VII ofFigure l with the lower glass sash in the raised position.

Figure 8 is a fragmentary view of a corner of the upper glass sash andmeans for supporting same.

' Figure '9 is a fragmentary view of a portion of said sash with saidsupporting means in a different position.

- Figure 10 is a cross-sectional view of Figure 4 substantially as takenalong the line XX,'and showing a variation in blind stop structure.

Figure 11 is a sectional view substantially as taken along the lineXI--XI of Figure 3 and showing the lower portion of a double hung takenalong window frame containing said combination unit andhaving a sillwhose exterior edge is flush with the exterior edge of the blind stopassociated therewith.

Figure 12 is a fragmentary sectional view similar to the meeting" railportion of Figure 4 showing a modified construction.

Construction in general For the purposes of convenience in description,the terms left or leftwardly and right" or rightwardly. as used in thisspecification, shall be understood to mean leftwardly and right weirdlyof, the combination unit, or parts thereof. when positioned as appearingin Figures 1 and 2. or as viewed from'the exterior of. the

building in which the unit is installed. The terms interior or"interiorly and exterior or exterior-1y shall have reference to parts ofsaidcombination unit toward and away from,

respectively, the interior of the building in which the said combination'unit Ill is installed. The terms upper" or upwardly and lower ordownwardly shall be understood to refer to V the said combination unitand parts thereof when window frame rather than on the exterior surfacesof such a frame as is common with presently Cir known storm windowunits. A pair of double hung sash structures, carrying glass panels, aremounted within the frame and a sash structure carrying a screen panelmay also be mounted in said frame directly below the upper of the twoglass carrying sashes. frame structure on the opposing faces of theblind stop permits such mounting to be done from the inside of thebuilding, and yet the structure hereinafter described is of suificientcompactness that it will not decrease the total effective size of thewindow opening by an unreasonable amount The general arrangement canbest be seen in Figures 1 to 4, inclusive, wherein the storm and screensash unit It to which this invention relates is shown as comprised of anupper glass sash II, a lower glass sash i2 and a screen sash I 3 whichsashes are all supported within the window frame M of the building.

In the following description, reference will usually be made only to theleft side of the window as viewed from the outside with theunderstanding throughout that the other side is iden tical therewith. Inthis manner the description will be shortened and simplified withoutloss of clarity or completeness.

The unit structure generally is comprised of a pair of vertical guideangles i5 and It afiixed to the opposed faces of the blind stop and asimilar guide angle ii is affixed to the under.

surface of the blind stop at the top of the Win dow. A sill structure isprovided at the bottom 'of the window opening to provide completemounting of the sash panels. A U-shaped channel is ailixed by its web tothe lower endof the vertical guide angle on each side of the windowframe to receive and guide the lower glass sash.

It is spaced from the outer flange provided on the vertical guide anglesa distance'sufficient to provide therebetween another channel for thereception and guiding of the screen sash. A similar U-shaped channel isafiixed to the top guide angle at the outer portion thereof forreception of the upper end of the upper glass sash and suitable springsare afiixed to the respective vertical guide angles near the upper endsthereof for holding the upper glass sash against the outer flange ofsaid guide angles.

Ifhe window. frame [4 (Figures 1 to 5) with which the herein disclosedstorm and screen sash unit may be used is indicated generally ascomprised of a window sill 22 and a blind stop 23. having a tophorizontal element 24, a left ver-- tical element 25 and a rightvertical element 26.

The unit frame structure The right, left and topguide angles 15, It, 11,s

respectively, (Figures 1, 2, 5 and 7) have substantially similarcross-sectional contours, and are. provided with side flanges 18, 18a,and 18b and. face, flanges 49, I80. and 191), respectively, which arepreferably.perpendicularly disposed with respectto each other. Theseangles may be. fabricated in any convenient, conventional manner, suchas by rolling or extruding, from any suitable material, such as aluminumor steel. Referring now only to the left guide angle 16,

and understanding that the others are duplicates thereof, the sideflange file is provided with a V longitudinally disposed bead 21a(Figures 1., 2 and 7). which bead extends out of the plane of thesideflange in the. opposite direction to that Such bead is preferably Themounting of the spaced therefrom a distance slightly less than thethickness of one of said sashes.

The left guide angle I6 is secured to the inner face 21 (Figure 7) ofthe left blind stop element 25 by any suitable means, such as the nails28 (Figure 3) so that the bead 2Ia, thereof, is po sitioned adjacent tothe exterior edge 29 of the element 25, and further so that the faceflange I9a extends toward the right blind stop element The side flangeI8 of the right guide angle I5 is similarly secured to the inner face 3Iof the right element 26.

A guide channel 48 (Figures 4 and 7), of U- shaped cross-section, whichis approximately half as long as the vertical guide angle I6 is securedto the inner surface of the side flange I8a near the lower end thereof,said securement being by any convenient means, such as the nails 5iwhich also hold the lower part of the guide angle I6 against the blindstop element 25. Its exterior flange 52 (Figure 3), whichextendsupwardly substantially further than the interior flange 53 isparallel with and spaced from the interior surface of the adjacent faceflange Illa a distance sufllciently greater than the thickness of thescreen sash to permit reception of said screen sash between saidflanges. The flanges of the guide channel are spaced from each other adistance sufliciently greater than the thickness of the lower glass sashII to permit its snug,

sliding reception therebetween.

The top guide angle I'I (Figures 1 and 5. ex-

tends between the upper ends of the blind stop elements and 26, and itsside flange I81) is secured to the lower face 33 of the top blind stopelement 24 by any suitable means in a manner similar to that of saidside angles. The opposite ends of the face flange I9b overlap theexterior surfaces of the face flanges I9 and I911, and the exteriorportions of the opposite ends of the side flange I8b extend beyond theupper ends of the side flanges I8 and Illa.

The holding channel 68 (Figure 5) extends between the upper opposededges of the face flanges I9 and I9a, and is secured to the lowersurface of the side flange I8b by any suitable means such as the screwsor rivets 'II The exterior, depending flange I2 of said holding channelpreferably extends downwardly approximately the same distance as theadjacent face flange I91) and is disposed snugly adjacent thereto.

A removable sash support base 35 (Figures 1 and 4), having a riserflange 36 and a support flange 31, substantially perpendicularv thereto,extends between the lower ends of the guide angles I5 and I6. Thesupport base 35 is preferably disposed so that the opposite ends of theriser flange 36 bear against and are substantially parallel with theinterior surfaces of the face flanges I9 and I9a, and further so thatthe support flange 31, which extends interiorly from the upper edge ofthe riser flange 36 for support of the lower glass sash I2, liessubstantially within a horizontal plane spaced upwardly from the windowsill 22 when the lower edge of the riser flange 36 is resting thereupon.An Lshaped sill plate 38 (Figures 3 and 4) is secured upon the sill 2'2,by means such as the nails 42, and extends between the lower ends of theside flanges I8 and I8a so that its vertical flange 33 extendsdownwardly from its horizontal flange ll, The vertical flange 39, whichis parallel with the plane of said face flanges I9 and I9a, is spacedinteriorly therefrom sufficiently to permit snug reception of the riserflange 38 between said face flanges and the vertical flange 39.

An L-shaped support angle 43 (Figures 1 and 4), whose length ispreferably slightly less than the distance between the opposing edges ofthe face flanges I 9 and Illa, is secured to the external surface of theriser flange 36 of the support base 35. The support angle 43 ispreferably parallel with, and spaced downwardly from, the support flange31 and extends in the opposite direction therefrom for supporting thescreen sash I3.

The glass and, screefn sash structure v of this invention. However, thecombined vertical length of the upper glass sash II and the screen sashI3 is preferably slightly less than the vertical distance between thesupport flange 31 of the base 35 and the web 69 of the holding channel58 to permit insertion of these sashes.

The screen sash I3 (Figures 1, 3, 4 and 7) may be comprised of anyconvenient, conventional type of screening mounted in a metallic frameof a conventional type. Said frame is preferably substantially equal inthickness to the frame of the said glass sashes, for reasons which willhereinafter become apparent. The screen sash (Figure 7), which ispreferably identical in width to the glass sash, may, for example, becomprised of frame elements or rails 44, each of which have a tubularportion and a portion providing a sidewardly opening, longitudinallydisposed slot 45, into which an edge of the screen panel 46 may beplaced and held fast by means of a suitable strip 41.

The vertical side rail 58 of the upper glass sash II (Figures 1 and 2)is held against the interior surfaces of the face flange I9a by the flatspring BI which spring is secured to the inner surface 21 of thevertical blindstop element 25, It will be clearly understood that thenumber and type of springs used may be varied within the scope of thisinvention depending upon the specific requirements and the size of thesash. The top rail 61 is snugly and slidably received into the holdingchannel 58.

As shown in Figure 4, the lower rail 53 of the upper glass sash I I issupported upon the upper rail 64 of the screen sash I3. A plurality ofpositioning ears 65 (Figure 4) are secured to the upper edge of thescreen rail 64 for reception into a slot 56 in the lower edge of thelower rail 63 of the upper glass sash II, thereby preventing accidental,lateral displacement of the lower rail 63 of the upper glass sash withrespect to the screen upper rail 64 when said upper glass sash andscreen sash are properly assembled.

In normal operation, the lower glass sash I2 is disposed between theflanges of the guide channels 48 and 49, the lower rail I3 thereof restsupon the support flange 31 of the sash support base 35. The fiat springsSI and 62 are preferably so tensioned and so positioned with respect tothe face flanges I9 and I9a,'that the lower glass sash 12 may be movedupwardly and downwardly beate, 951

of. the frame of the, upper. glass sash H.

The upper rail, 64' of the screen sash i3 is.

. wardly within its supporting channel members 48 the support bracket 83will not scratch the glass. However; the supportbracket 83 does extend asum'cient. distance from the screen upper mu B l to engage and supportthe lower rail 53 of the lower glass sash l2 when said lower glass sashis lifted above said bracket and then moved downwardly thereagainst.Support bracket be is correspondingly positioned near the other side ofthe screen sash and functions similarly.

In raised position the said lower sash will be underthe springs 81 and62 and the action thereof will urge'it. snugly against the upper screenrail so-thatthere is no reasonable likelihood that the said lower sashwill become accidentally disengaged from. its supporting brackets.

Cut-out portions 93 may be provided to receive the said brackets and toprovide a fiat surface for them to'bear against. 4 1 v When the lower,glass sash is thus resting upon the brackets 83. and 84,. it is in thestorage position. adjacent to and. substantially parallel with V theupper glass sash ll.

Since the lower glass sash and screen sash are a of substantially thesame length, the sill support fangle 43 is spaced downwardly from theadiacent support. flange 31 and the support brackets 83 and 84 "aredisposed near the lower edge of the screen sash upper rail 64 to preventinterference between the said support. brackets and the upper rail 88 ofthe lower glass sash l2 when said lower sash. is; resting upon thesupport flange 3?. Although the length of the lower glass sash may bevaried somewhat, it will be recognized that said length must be such.that said lower glass sash can be received between the support bracketsand the top guide angle it.

The above described vertical ofiset between the screen and lower glasssash provides an overlap between the lower rail of the upper sash andthe upper rail ofthe lower glass sash, as shown in Figure l, whichinhibits the passage. of. air

' between the; said two rails. To provide further; L against suchpassage of air, a resilient, preferably metallic sealing member 89 issecured to the upper rail 88 of the lower sash l2 (Figures 3. and andextends between the opposed edges of the flanges on the channel, members48 and 49. I 7 h A rectangularly shaped handle M (Figures 3, 4, 6, 8 and9), preferably fabricated from wire, is slideably engaged, alongv itsupper portion 76 by a cylindrical bracket '13 which bracket is securedtothe lower rail 13 of the lower glass sash E2 in any conventionalmanner near the leftward end thereof. The handle 14 is horizontallyslideable toward and away from the vertical guide angle I6. A plurality,here two, of integral protrusions BI and 82 are provided along theinterior faces of the interior flange 53 of the channel member t8.vThese extend into the path of the vertical movement of the handle whenit is extended toward the adjacent guide 'angle l8 and engages saidupper portion 16 to DOSES.

. 3 provide support for the lower glass sash H in a partially raisedposition for ventilation pursimilar handle construction 19' is providedat the rightward side of..the lower sash together with similarsupporting and cooperating structure.

Alternate structures In the event that the sill 9| (Figure 11) has anexterior edge 92 flush with the exterior edge of the blind stop 93, thelower end of the'vertical face flange 95 may be bent inwardly to engagethe window sill exterior edge 92 thereby improving the exteriorappearance of the combination unit II]. All other features of thestructure hereinabove described in detail remain the same. a

If the blind stop- (Figure 10) should have an ornamental head 9'! alongthe exterior'edge thereof, there will be no interference with themounting of the unit 'herein described and it may be applied in exactlythe same manner as above described. This is not true with otherunitswith which I am-familar.

The combination unit l0 may be converted into solely a storm window unitby removin thescreen sash l3 therefrom and placing a pair of channelmembers (not shown), between the face flanges i9 and Mia and theexterior flanges of theU- channels in place of the screen forthe'purpose of supporting the upper: glass sash H.

In Figure 12 there appears a modification which adds materially to theappearance of the unit. A strip lilo is bent. at its upper edge and isinserted into, and held by, the lower rail .of the upper sash in. thesame manner as the glass panel. The lower edge extends downwardlys'uiliciently to cover the. meeting line of the lower edge vof the uppersash, and the upper edge of the The storm window and screen sash frameis first mounted on the sill and opposed faces of the blind stop of themain window frame with which the storm. window and, screen unitis to beused. The panels may then be installed. First,

I the lower edge of the screen panel is inserted between the U-channels,and the face flanges I 9 and I9a of the guide angles and is passeddownwardly until it rests on the screen. support angle 43. The upperglass sash is then inserted under the. springs 6| and 62 andfmovedupwardly until it is received into the holding channel 68.

The lower edge of the upper glass sash is then moved first 'exteriorlytoward the face flanges l9 and Illa and then downwardly against thescreen sash so that the positioning cars thereon served that theinterior flanges of the two respec- -tive U-channels are cut offsomewhat shorter than are the webs and outer flanges thereofin order tofacilitate this insertion.

When it becomes desirable to provide a limited amount of ventilationthrough the unit Hi, the

upwardly to its full open position, which is the same as its storageposition, the said lower sash is, with the handles 74 and first movedtoward each other to clear said protrusions 8i and 82, lifted upwardlyuntil the lower rail 13 thereof is entirely above the brackets 33 and86. At this point, said lower sash will have been urged between thesprings 6i and (i2 and the face flanges [9a and IS. The tension of thesprings GI and 52 will urge the lower sash exteriorly against the upperglass sash. A slight downward movement of the lower glass sash will thecause the surfaces defined by the cut out portions 99 to rest upon theupper surfaces of the brackets 83 and 84. The brackets will supportsaidlower glass sash in its upper or storage position and the action ofsaid springs 6| and 62 will assure that said sash will not accidentallyslip off said supporting brackets.

It will be seen that the support brackets 83 and 84 provide anuncomplicated, positive means for supporting the lower glass sash I2 inthe storage position without necessitating that said lower sash be movedinwardly of a plane defined by the interior edges of the blind stop 23at any time, including the movement of said lower glass sash upwardlyinto. or downwardly out of said storage position.

The lower glass sash is removed from the combination unit by sliding itdownwardly and interiorly from the storage position after disengagingthe lower rail '13 thereof from the brackets 83 and 84. The upper glasssash Il may then be removed by urging it upwardly slightly until it isdisengaged from the positioning ears 65 and then drawing it interiorlyand downwardly. This need for upward movement of the upper glass sash toeffect such disengagement is the reason why the distance between thesaid web 69 of the channel I38 and the flange 3'! of the base 35 isslightly greater than the combined vertical lengths of the screen sashl3 and upper glass sash H. The screen sash l3 may also be removed bymoving it upwardly to clear the U- channels 48 and 49, and theninteriorly and downwardly.

Although the above mentioned drawings and description apply to oneparticular, preferred embodiment of the invention, it is not myintention, implied or otherwise, to eliminate other variations ormodifications which do not depart from the scope of the invention unlessspecifically stated to the contrary in the hereinafter appended claims.

I claim:

1. In means for supporting sash with respect to each other andsubstantially within a zone defined peripherally by the sill andblind-stop of a window frame, said blind-stop having an exterior edge,the combination comprising: a plurality of guide angleshaving side andface flanges, said side flanges being secured to the opposing surfacesof said blind-stop substantially along the full length thereof andhaving lengthwise beads intermediate the lengthwise edges thereof andextending therefrom out of said zone adjacent to said blind-stopexterior edge, and said face flanges extending into said zonesubstantially within a single plane disposed externally of saidblind-stop; a first glass sash removably held against and parallel withsaid face flanges and resilient means secured to said blind-stopremovably holding said glass sash within said zone and near the topthereof; a second glass sash and means secured to said side flangesslidably holding said second glass sash adjacent to, interiorly of, andparallel with said first glass sash and within said zone; and means fordisconnectably engaging and supporting said second glass sash in araised position.

2. Inmeans for supporting storm and screen sash with respect to eachother and substantially within a zone peripherally defined by the silland blind-stop of a window frame, said blind-stop having an exterioredge, the combination comprising: a plurality of guide angles havingfirst and second flanges, said first flanges being secured to theopposing surfaces of said blind-stop substantially along the full lengththereof and having lengthwise beads intermediate the lengthwise edgesthereof and extending therefrom out of said zone and positioned adjacentto said blindstop exterior edge, and said second flanges extending intosaid zone substantially within a single plane disposed externally ofsaid blind-stop; co-planar upper glass sash and lower screen sash withinsaid zone and resilient means secured to said blind-stop removablyholding said sash in said zone adjacent to said second flanges; a secondglass sash and means secured to said first flanges adjacent to said sillslideably holding it within said zone adjacent to, interiorly of, andparallel with said co-planar sashes; and means secured to the top railof said screen sash between the side rails of said second glass sash fordisconnectably engaging said second glass sash when in the raisedposition.

3. In a self-storing metal storm and screen sash unit supportable upon,and substantially within, the zone peripherally defined by the 0pposingsurfaces of the sill and blind-stop of a double hung window frame, saidblind stop having an exterior edge, the combination comprising: aplurality of guide angles having first and second flanges, said firstflanges each having a longitudinally disposed bead intermediate thelengthwise edges thereof and extending therefrom oppositely to saidsecond flange, and said first flanges being secured to said blind-stopopposing surfaces along the full length thereof, said beads extendingout of said zone and positioned adjacent to said blind-stop exterioredge and said second flanges extending into said zone and lyingsubstantially within a single plane disposed externally of saidblind-stop; a screen sash and means slidably and removably holding samewithin, and near the bottom of, said zone adjacent to the secondflanges, and a first glass sash and resilient means removably holdingsame against,

said second flanges supported upon said screen sash and co-planartherewith; a second glass sash and means slideably holding same adjacentto, interiorly of, and parallel with, said first glass and screen sasheswith its upper rail partially overlapping the lower rail of the uppersash when said glass sashes are in closed position; a resilient stripbetween said rails; and means extending from the screen upper rail intothe plane of said second glass sash between the vertical railstheregrease;

said second glass sash when in a raised position.

4, In a self-storing, metal storm and screen sash unit supportable uponthe Opposing surfaces of the blind stop and sill of a double hung windowframe and primarily within the zone between two planes defined by theinterior and exterior edges of said blind stop, the combinationcomprising:

a pair of vertical guide angles having first and second flanges, saidfirst flanges each having a bead lengthwise thereof, intermediate thelongitudinal edgesthereof and extendingtherefrom in a direction oppositeto said second flange, and said first flanges being secured to theopposed surfaces on the opposed sides of said blind-stop andextendingthe length thereof, said beads being located adjacent to the exterioredges of said blind-stop, and said second flanges extending into saidzone and lying within a plane disposed externally-of saidbeads; ahorizontal uide angle having first and second flanges identical incrosssection with said vertical guide angles and extending between theupper ends thereof, the first flange of the horizontal angle beingsecured to the surface of said blind-stop facing said zone, the secondflange thereof extending into said zone adjacent to the vertical secondflanges, and the bead thereof extending out of said zone adjacent tosaid blind-stop exterior edge; a U-channel associated with the lowerportion of each of said guide angles to form two adjacent, parallel andinwardly facing side channels; a screen sash slideably and removablyheld by and Within the exterior of said side channels adjacent to thevertical second flanges within said zone; a first glass sash and meansremovably holding same within said zone against said vertical secondflanges adjacent to said horizontal angle, said first sash beingco-planar with and supportable upon the screen sash; a second glass sashslideably held within said zone by and within said interior of saidsidev channels adjacent to, interiorly of, and parallel with said firstglass and screen sashes a pair of spaced, horizontally slideable handlessecured to the lower rail of the second glass sash and means secured tothe vertical guide angles and selectably engageable by said handles forholding said second lass sash in a partially raised position; and abracket extending from the screen upper rail at a point between the siderails of the second glass sash a short distance into the plane of saidsecond glass sash for disconnectably engaging the lower rail thereofandsupporting the second sash in a storage position. 5. In a self-storing,metal storm and screen sash uniti supportable entirely upon andsubstantially between the mutually opposed surfaces of the, sill, thetop horizontal element and the two vertical side elements of ablind-stop in a double-hung window frame, said blind-stop elementshaving exterior edges, the combination comprising: a pair ofsubstantially identical, vertical guide angles extending-between thesill and the top blind-stop element, each angle havingperpendicularlydisposed face and side flanges, each said side'fla'ng'e having alongitudinally disposed bead intermediate its longitudinal edges andextending therefrom in the opposite direction from said face flange, andcheer the side flanges being secured to each of said opposed surfaces ofthe vertical elements with said beads of said exterior edges; ahorizontal guideangle identical in cross-section with said verticalguide sash and means removably and slideably holding beingsnugly'adjacentfto and externally of 'the said exterior edges of said verticalelements, and saidface flanges'extending'toward each other andlyingwithin a single plane spaced externally angles and extending between theupper ends thereof, theside flange thereof being secured to the lowersurface of said top horizontal element, the face flange thereofextending downwardly parallel with, externally of, and adjacent to theupper ends of the face flanges of, said vertical angles and the beadthereof extending upwardly adjacent to and externally of the exterioredge of the top element; a screen sash and means holding samevertically, slideably and removably adjacent to the interior surfaces ofsaid face flanges of the vertical guide angles; a glass carrying uppersash and resilient means holding same against said face flanges andadjacent to the horizontal guide angle, said upper sash being co-planarwith and supportable upon the screen sash; an interengaged extension andreceptacle located, respectivelyyon one and the other of the upper edgeof the screen sash and thelower edge of the upper sash; a glass carryinglower same between said side flanges for upward and downward movementsubstantially within a plane parallel with, and adjacent to andinteriorly of, the plane of the screen sash; a pair of spaced,horizontally slideable handles secured to the lower rail of the upperglass sash and means secured to the vertical guide angles and selectablyengageable by said handles forholding said upper glass sash in apartially raised position; and a pair of spaced brackets extendingfrornthe upper rail of the screen sash at points between the side railsof' the lower glass sash a short distance into the plane of said lowerglass sash for disconnectably engaging the lower railthereof andsupporting the lower glass sash in a storage position. r

6. In means, for supporting storm and screen sash with respect to eachother and substantially within a zone peripherally defined by thesilland blind-stop of a window frame, said blind-stop having an exterioredge, the combination comprising: a plurality of guide angles havingfirst,

and second flanges, said first flanges being secured to the opposingsurfaces of said blind-stop substantially along the full length thereofand having lengthwise beads intermediate the lengthr wise edges thereofand extending therefrom out of said zone and positioned adjacent to saidstop;=co-planar upper glass sash and lower screen sash within said zoneand resilient means secured within said zone adjacent to, interiorly of,and

parallel with said co-planar sashes.

HARRY A. KAUFMA N.

7 REFERENCES CITED file of this patent:

UNITED STATES PATENTS Number Name Date 7 2,402,112 Gee June 11-, 1946

